Water continuous methyl acrylate emulsion polymers for improved

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

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423121, 423122, 524736, 524745, 524747, 524755, 524762, 524832, 524833, 526 80, B01D 2101

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active

060368691

ABSTRACT:
A method for improving the flocculation of suspended solids in a Bayer process liquor in a primary settler stage. The method includes the step of adding to a primary settler feed a composition including water-continuous polymer, said polymer being hydrolyzable in a Bayer process liquor to an acid form, said acid form being an active red mud flocculent. A novel emulsion, and a polymerization technique for obtaining high molecular weight emulsions are also disclosed.

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